class InputData:
    def __init__(self) -> None:
        self.n: int = int(input())


class PrintRow:
    def print_row(self, size: int, row: int) -> None:
        empty: str = " "
        star: str = "* "
        print(f"{empty * (size - row)}{star * row}")


class RhombusPrinter:
    def __init__(self, size: int) -> None:
        self.size: int = size
        self.print_row_obj: PrintRow = PrintRow()

    def print_rhombus(self) -> None:
        self._print_upper_part()
        self._print_center_part()
        self._print_bottom_part()

    def _print_upper_part(self) -> None:
        for row in range(1, self.size):
            self.print_row_obj.print_row(self.size, row)

    def _print_center_part(self) -> None:
        self.print_row_obj.print_row(self.size, self.size)

    def _print_bottom_part(self) -> None:
        for row in range(self.size - 1, 0, -1):
            self.print_row_obj.print_row(self.size, row)


input_data: InputData = InputData()
rhombus_printer: RhombusPrinter = RhombusPrinter(input_data.n)
rhombus_printer.print_rhombus()